I recently learned that Buddhist temples built in Japan, with their narrow towers and many layers were styles derived from Indian Stupas, which makes sense as they do look similar.

Here is an example of the similarity.. they are not exactly the same, but you can recognize the influence I think. The first is a stupa in Bodhgaya, the second is in Osaka, Japan.

But it got me to thinking, how on earth did the Stupa evolve then? What was it's style after? Was it's architectural style developed for structural reasons or a higher purpose? The more elaborate ones in places like really fascinate me to no end, as do the Nepalese styles. What is truly remarkable is how far the style has spread. Of course, it's spread with Buddhism, so doesn't seem so remarkable at first glance. But you must take into consideration the lack of contemporary art or architecture stemming from originating cultures in other religions. True, a Mosque is a Mosque, but there is more to a Stupa than it's use.

Here are a few links about stupas, the first a very good and in depth one. Includes a list of stupas all over the world and the symbolic meaning of a stupa. Enjoy!

The Stupa Information Page

Buddhist Art in India-Symbolic Stupas

Buddhist Art and Architecture-Hill of Sanchi